Exact density matrix elements for a driven dissipative system described by a quadratic Hamiltonian
arXiv:2108.09812
Abstract
For a prototype quadratic Hamiltonian describing a driven, dissipative system, exact matrix elements of the reduced density matrix are obtained from a generating function in terms of the normal characteristic functions. The approach is based on the Heisenberg equations of motion and operator calculus. The special and limiting cases are discussed.
15 pages, to be published in Scientific Reports